Scanning probe microscopy investigation of iron garnet films for magnetoplasmonics

Abstract

Topography and domain structures of Bi-substituted iron garnet films proposed for magnetoplasmonic applications are presented. Investigations were carried out by scanning probe microscopy methods, including polarization near-field optical microscopy. The most suitable films with less rough surface were chosen. The period of domain structure of sputtered film of composition Bi2.8Y0.2Fe5O12 were determined, 2w = 0.5 μm.